result relation used anymore?

While learning how to read query trees, I have been puzzled by the
assertion in the manual that the :resultRelations of an INSERT holds
`the table (or view!) where the changes take effect,' because in all
of the INSERTs I have generated the resultRelation in fact appears
empty, and the destination of the INSERT appears as the first of the
range table entries.  Do I misunderstand the query trees, or the
documentation, or both?

The documentation I quoted is at:

http://www3.us.postgresql.org/users-lounge/docs/7.3/postgres/querytree.html


-- 
Brandon Craig Rhodes                         http://www.rhodesmill.org/brandon
Georgia Tech                                            brandon@oit.gatech.edu